Senior Software Engineer

Senior Software Engineer

Company details

Description of the offer

We’re looking for an exceptional Senior Software Engineer (Backend / Web3)—someone who thrives in high-performance environments, holds extremely high technical standards, and has a deep, practical understanding of blockchain infrastructure and EVMs.

This is not a role for average engineers. We want someone who can design, build, optimize, and operate production-grade blockchain systems and backend platforms at scale, with strong ownership and architectural judgment.

Key Responsibilities

Blockchain Infrastructure & Nodes

• Set up, configure, and maintain EVM-compatible blockchain clients in Linux environments.
• Optimize blockchain node performance, reliability, and observability.
• Ensure seamless integration between blockchain nodes and backend services.

Backend Engineering & Microservices

• Design and build secure, high-performance backend services using Node.js, Go, and TypeScript (Rust is a strong plus).
• Develop and maintain scalable microservices architectures using gRPC, tRPC, ExpressJS, and modern monorepo tooling such as Turborepo.
• Optimize and operate PostgreSQL and Redis for performance, reliability, and scalability.
• Implement security best practices including authentication, authorization, encryption, and secrets management.

Smart Contracts & EVM Expertise

• Develop and optimize Solidity smart contracts, following best practices and established standards (e.g. ERC-721, ERC-1155).
• Demonstrate a deep understanding of EVM internals, execution models, and blockchain protocols—not just surface-level usage.

Cloud & DevOps

• Design, deploy, and operate infrastructure on AWS and/or Google Cloud.
• Build and maintain CI/CD pipelines, monitoring, logging, and alerting.
• Continuously improve system performance, reliability, and cost efficiency.

AI, Productivity & Engineering Quality

• Leverage AI-powered development tools (e.g. Cursor, ChatGPT, Claude, Gemini) to improve development speed and code quality.
• Write clear, well-structured technical documentation for systems and processes.
• Uphold best practices for security, scalability, testing, and maintainability.
• Participate in architecture reviews and mentor junior engineers.

Required Skills & Experience

• 5+ years of experience in backend engineering.
• Strong expertise in Node.js and backend system design.
• Experience with Go and TypeScript; Rust is a strong plus.
• Solid experience with PostgreSQL and Redis.
• Hands-on experience with blockchain/Web3 systems and Solidity smart contracts.
• Strong understanding of EVMs and blockchain protocols (required).
• Experience setting up and running Ethereum or other EVM-compatible blockchain clients.
• Proficiency with AWS and/or Google Cloud.
• Strong Linux experience, especially for running and optimizing production infrastructure.
• High standards for code quality, documentation, and system reliability.

Nice to Have

• Background in cryptography (elliptic curves, hashing algorithms, key management).
• Experience with Rust in production systems.
• Contributions to open-source blockchain or infrastructure projects.
• Prior experience building large-scale blockchain or custody infrastructure.

Why Join Us

• Work on real, production-grade blockchain infrastructure—not experiments.
• Collaborate with a highly skilled team at the forefront of blockchain innovation.
• Competitive compensation with meaningful equity ownership.
• Join a fast-growing startup shaping the future of digital assets and blockchain infrastructure. it to explicitly target staff / principal-level candidates

Location of employment

How to apply?